Recently one of my plants is showing signs of some sickness. But in checking my run off ph is in the 5.14 to 5.56 range. My ppms seems to be in range. So where should my runoff ph be and what do i need to do to fix this issue?
Between 6.3 and 6.8 if you are in soil. The coco range is lower.
Feed solutions with a higher pH to raise the runoff pH. A flush can help correct pH as well. Most quality cannabis soils will revert to a pH of ~6.5 with a good flush.
2 Likes
My soil probe shows 6.5. My runoff trays say otherwise. Do i need to raise the ph of my water going in. My plain spring water is always right around 6.5ish
Are you using nutrients? What line?
Plain water may be 6.5 but nutrients will lower it. Are you testing the nutrient solution and how?
I do not use soil probes for pH. I was told way back when they are not accurate.
1 Like
what I recommended on another post he created. It’s soil and advised this with how low his run off PH was 
1 Like
Yeah ive been checking my ph in but not on the way out. Just my ppms. I think ive got it straightened out. But im definitely gonna monitor it better from now on. I was able to correct it for today. But will check it every time from now on. Thank you all for the help. I must have been getting by on luck up until now.
I use an app called jane for keeping grow logs, you should check it out. This is how my records look.
Dont forget to feed immediatly following your flush, you know cuz flushes wash out nutes.
1 Like
What kind of ph meter do you have?
Are you growing indoor or out? Using LEDs?
Indoor with led
I would start by Verifying PH meter in a clean fresh bottle of 7 ph solution. Good luck 
3 Likes
Ok May help may not but I find with LEDs I have to give them extra cal mag a little phosphorus keeps away the rusty leaves if your ph is good try that
2 Likes